Louis m



(No Model.)

L. M. 00HN& L H. WATSON. SELF ADJUSTING BOTTLE STOPPER.

No. 415,939. Patented Nov. 26, 1889.

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ATTEST: INVENToR;

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ATTORNEY.

' UNITED STATES PATENT OFFICE.

LOUIS M. COI-IN AND LEWIS II. VATSON, OF CHICAGO, ILLINOIS, ASSIGNORS, BY DIRECT AND MESNE ASSIGNMENTS, TO SAID WATSON AND GARRITT H. OLIVER, OF SAME PLACE.

SELF-ADJ USTI NG BOTTLE-STO PPER.

SPECIFICATION forming part of Letters Patent No. 415,939, dated November 2.6, 1889.

Application filed December 10, 1888. Serial No. 293,181. (No model.)

To all whom it may concern: ment consists in forming the upper portion 5o Be it known that we, LOUIS M. COHN and or neck with outwardly-projecting horizontal LEWIS II. VATSON, citizens' of the United flexible ridges b, preferably two or more in States, and residents of Chicago, in thecounty number, and of a gradually-increasing' size 5 of Cook and State of Illinois, have invented upward, to form a supplementary closure for certain new and useful Improvements in Selfdifferent sizes of bottle-mouths, and at the 55 Adj usting Bottle-Stoppers; and we do hereby same time repress or prevent the tendency of declare the following to be a full, clear, and the liquid and gases from discharging in a exact description of the same, reference being spray or jet into the face of the manipulator 1o had to the accompanying drawings, forminga in effecting an opening of a bottle closed by part of this speciiication. the present type of stopper. 6o

This invention relates to that type of bot- C isa vertically-arranged plunger guided tlestoppers in which an elastic bulb or bag in an axial orifice in the core A, as shown in is adapted to expand within the Inouth of a Fig. 2, and having` a knob or button C at top,

I5 bottle to effect a closure of the same; and the by which it is manipulated, and a stop-shoulpresent improvements have for their object der c, below the core A, to limit its upward 65 to provide a self-adjusting bottle-stopper, em- Inovemeut, its lower end c being rounded bodying the features of cheapness and simand resting upon the rounded seamless botplicity of construction, automatic adj ustabiltom of the flexible'bnlb B, so that when forced zo ity to form a closure for a large number of downward by the thumb of the operator it different-sized bottle-mouths, combined with will stretch the flexible bulb into the extended 7o ease with which it can be cleansed from any condition illustrated in Fig. 3 from that adhering impurities and the avoidance of shown in Figs. 1 and 2. When the plunger the disagreeable discharge of the liquid and is released, it will be forced upward again by 25 gaseous spray into the face of the person the natural elasticity of the bulb. `The core opening a bottle to which the stopper is ap- A is made of greater diameter than the neck 7 5 plied. Te Vattain such object by the conof the bulb B, so as to overhang the same. struction and arrangement of parts illus As thus constructed, its under surface affords trated in the accompanying drawings, in a rest .for the .fingers in manipulating the 3o whichstopper, as well as a stop to abut against the Figure lis a side elevation of our improved top of the bottle-neck to limit the entrance of 8o selfadjusting bottle stopper in its normal the stopper into such neck. condition; Fig. 2, a vertical section of the. Ie claim as our invention and desireto sep same in position in the neck of a bottle; and cure by Letters Patent- 35 Fig. 3 a side elevation of the stopper in an A self-adjusting bottlestopper comprising,

extended condition, ready for insertion in the in combination, a rigid guide-core A, a pend- 8 5 mouth of a bottle to effect a closure of the ent seamless bulb B, having a series of horisame. Zonta-l iiexible ridges b, gradually increasing Similar letters of reference indicate like in diameter upward, andthe plunger C, pass- 4o parts in the several views. ing through the core A and provided with a As represented in the drawings, the stopstop-shoulder c, essentially as set forth. 9o per consists of a rigid main core or body A, In testimony whereof witness our hands to which the pendent iiexible bulb or bag B, this 23d day of October, 1888. ..5 ttt' Siiititt.tfttftitff..it LOU. M- CQHN- b ,y I ,A r its upper part molded to shape and stretched LE IS H' l AFSOL' over said core and cemented thereto, as in- In presence ofdicated in Fig. 2. The pendent bulb B is ROBERT BURNS,

seamless, as shown; andour present improve- EDWD. A. VEBSTER. 

